By weight, Bone is five times stronger than steel.
417
Obsessive nose picking is called Rhinotillexomania.
101
Poor eyesight (myopia) is associated with higher IQ.
232
If your DNA was stretched out it would reach to the moon 6,000 times.
256
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Your fingernails grow faster in summer.
744
Your thumb is about the same size as your nose.
124
Yawns are more contagious among people with closer relationships.
163